The students went into the classroom,________.

The company suffered a heavy ____ because of the accident

Why? A different figure ________ each time I add them, you see.—-Something must be wrong with the calculator.

mily is a cooperative enterprise forwhich it is difficult to _____ rules, because each family needs to work out itsown ways to deal with its own problems.

________ is quite natural,a beginner can’t read the books written in English very quickly